The dumbelll bicep curl is
an exercise for the biceps brachi. The Biceps Brachii is attached
to the forearm bone called the radius and originates at the
scapula in two places. The biceps is actually 2 muscles, the
long head and short head. The bicep is responsible for flexion
at the elbow. Therefore all arm curl exercises strengthen
the biceps. Barbell bicep curls and dumbell bicep curls are
among the most common. Some other variations include; preacher
curl, hammer curl, french curl and include further variation
using cables, dumbells, barbells and manual resistance.